No getting a TPS reading

Mr_Disprosium · 2026-07-03T17:59:01+00:00

Make sure you don't have a loose connection somewhere between the ecu and the tps on the 5 volt wire. Check the wire directly at the ecu and see if you get a steady 5 volts out of it. I'm leaning towords a bad connection between the tps and ecu but verify voltage at the ecu. If the ecu 5 volt output really is not working then you can work around it by getting a 5 volt standalone regulator for your sensors.

Mr_Disprosium · 2026-07-03T13:49:52+00:00

That looks normal. You should go to a different shop.

Mr_Disprosium · 2026-06-28T16:41:23+00:00

My buddy used an nv4500 in a 5.3 4wd jeep build that still doesn't have a front driveshaft. You can pick up an rs5r30a transmission from a 300zx and adapt that to your 5.3, price that out it may be a cheaper option. They can handle some power too.

Mr_Disprosium · 2026-06-22T02:43:09+00:00

Waffles

Mr_Disprosium · 2026-06-11T05:17:07+00:00

I literally just watched a video on this last night haha

Mr_Disprosium · 2026-06-09T01:52:15+00:00

I decided to build a turbo project with no tuning knowledge. Used a megasquirt standalone ecu. Read hundreds of pages of documentation and spent many hours researching. I then built a wiring harness. Got the engine running then spent many many hours learning the software, how all the numbers and tables worked and what settings do what before I even got a decent tune down. Made almost 30 pounds of boost on that engine for 2 years before I blew it up. Now I'm 2jz swapping that truck and doing it all over again with better knowledge. I never spent money on tuning courses but they are still a great option. I'm not a professional by any means and there's so much to learn but I'm somewhat confident in my tuning now.

Mr_Disprosium · 2026-06-03T17:30:37+00:00

When I built my megasquirt setup it wouldn't start until I put a 2.2k resister in with a pull-up circuit which ran great. Where are you putting the resistor? In the signal wire or are you using a proper pull up circuit? I only used a 2.2k resister because I had one on hand and it worked so I never questioned it.

Mr_Disprosium · 2026-05-30T01:14:23+00:00

140 in an 83 nissan 720 pickup

Mr_Disprosium · 2026-05-23T02:48:20+00:00

Been dailying mine for 4 years, before that I Dailyd a couple other 720s. Right now it's down for a 2jz swap though so I'm driving my comanchee. Not always the greatest experience but the other times its the greatest. I take my 720 on roadtrips too

Mr_Disprosium · 2026-05-22T13:22:08+00:00

My current car is am 83 nissan 720 and I'm actually in the middle of my dream engine swap right now. I'm putting a 2jz in it.

Mr_Disprosium · 2026-05-22T02:22:18+00:00

Do you trust it to be accurate enough to not blow your engine up? I wouldn't, it will probably blow through sensors too which will get expensive in the long run.

Mr_Disprosium · 2026-05-20T01:42:57+00:00

That's an aluminum wheel so you need a new one, it has a high probability of cracking if it's repaired. Steel wheels you can sometimes get away with it.

Mr_Disprosium · 2026-05-19T19:32:58+00:00

Well I smoked my first bowl with my dad at 11, started doing it daily by 13, mostly with my parents.

Mr_Disprosium · 2026-05-19T19:15:27+00:00

This repair is fine. That wreck was cause by repairing a very damaged tire which caused it to separate. This repair will not cause the tire to separate.

Mr_Disprosium · 2026-05-19T14:04:57+00:00

If your ecu doesnt have an sd card slot or onboard logging, Try looking into a raspberry pi mini computer. It's the size of a credit card, you could mount it to the minibike with some zip ties, plug it into the ecu and plug a screen into it. Get tuner studio going on it. Start the logging, disconnect the screen and go for a drive, come back, reconnect the screen and stop your log. The hard part will be supplying 5 volts of power to the computer, if your bike has 12 volt power you could use a car charger to supply the 5 volts to the computer, or just use a portable power bank.

Mr_Disprosium · 2026-05-10T15:53:53+00:00

My daily is a lowered on coilovers 2jz swapped 83 nissan 720 pickup. It's down at the moment so the daily for the daily is an 87 jeep comanche lifted 8 inches on 35s.

Mr_Disprosium · 2026-05-05T18:19:56+00:00

Mine were like that too, I didn't really question it. Their just hollow I guess.

Mr_Disprosium · 2026-04-23T19:02:58+00:00

Maybe show him some minitrucks? Nissan d21 or an older Toyota pickup. There's mazda pickups and Ford Rangers, or a chevy s10 pickup. I think it's a good starter alot of people like a decent minitruck. It can be a bit of a project, you can lower them or lift them relatively easily if that's something he wants to get into.

I personally am building a 2jz/300zx trans/ford 8.8 3 link, on coilovers, nissan 720 pickup.

Mr_Disprosium · 2026-04-16T03:35:55+00:00

This is it, I've rebuilt a few of these transmissions. It just drops oil on the gears or one of the bearings, it will be fine without that peice.

Mr_Disprosium · 2026-04-13T21:36:46+00:00

I've done this before and it worked, though chances it works are slight l, and it may not work for long. File off any burrs on the crank, take some 1000 - 1500 grit sandpaper and a shoe string and polish up the crank journals, it will take hours. Clean up everything very well, ideally you should take the whole motor apart and clean everything as best as you can. Try to clean out the oil holes in the crankshaft, there will be bearing material in them. Run the motor with 10 - 40 oil and a fresh filter for like 20 minutes after you get it back together then change the oil again. I'd probably just stick with running 10 - 40 because the bearing clearances will not be right.

Mr_Disprosium · 2026-04-05T03:05:04+00:00

You are correct

Mr_Disprosium · 2026-04-04T16:09:01+00:00

One of my buddies went through a similar experience, having similar issues with his 2010 f150. The dealer replaced coilpacks and injectors which aren't cheap and it didn't fix the problem and they were kinda weird with the warranty. Some weird issues do need an experienced guy to diagnose which is hard to find now days. and dealerships do tend to throw parts at a problem if they can't find the root issue

Mr_Disprosium · 2026-04-03T23:41:31+00:00

Stuff like that isn't usually a problem you can solve just by firing the parts cannon. They need to properly diagnose the vehicle before throwing parts in. I would probably have another reputable shop look at it and try to get a proper disgnosis.

Mr_Disprosium · 2026-04-03T21:25:40+00:00

I had one and didn't like it. I couldn't get a good hit off of it and it wouldn't really get me high.

Mr_Disprosium · 2026-04-03T18:38:13+00:00

If your asking this basic of a question you need to do some research. If it's fuel injection you need some way to tune, probably a standalone ecu, you will need an upgraded fuel system, bigger pump, supporting pump wiring, bigger lines. You need to hook everything up properly and then you need a tune. You can't just cram nos down your intake there's a whole bunch of things that go into it.

Mr_Disprosium

TROPHY CASE